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Post by stevievespa on Jul 13, 2014 7:38:45 GMT
Hi all got a 20/20 carb for my 150 sprint engine gonna change it just wanted to check that jet sizes are correct it has a 112 main 52/140 small are these the correct sizes cheers
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Post by vespasco on Jul 13, 2014 8:45:35 GMT
In my old haynes manual it says of a 150 Sprint carb:
SI20/17D carb
102 main
42 idle
E1 diffuser
140 air corrector
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Post by henri on Jul 13, 2014 9:10:16 GMT
yep thats the jetting for a sprint engine ,its a 2 port pre-mix ,the old 24/24 has a 96 main if memory works an the plug had a good colour ,rabs carb was jetted for a 160cc kit ,i think the diffuser will be a be3 an can stay ,an a 45 pilot jet an 102 main should get us in the ball park ,will have to do a "chop" to see how the slightly larger carb affects the mix ,an maybe go up a main jet size or 2 ,will have a look through my jet collection an see what ive already got . henri
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Post by stevievespa on Jul 13, 2014 10:51:27 GMT
Ok henri cheers are u in petersfield fri afternoon might pop over if ok
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Post by stevievespa on Jul 13, 2014 10:54:42 GMT
Let us no wat jets u have and if not ill nip to allstyles cheers
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Post by henri on Jul 15, 2014 18:44:46 GMT
ive a load of 60 chokes 1's ,but it will already have 1 of em, ive a couple of e1 diffusers an the carb prob has a be3 in it already an prob will be best left in ,ive a 48/160 pilot jet ,dellorto, an a 40/120 lml genuine that came from a spaco 20/20 px150 rebuild kit i got cheap aswell as a be3 diffuser,tho that is unmarked?,
check the diffuser/atomiser in the carb ,its the next bit in main jet stack to main jet , with 4 lines of three holes in it ,an ive got a couple of 140 aircorrecter jets ,an a lml 160 1 too,
so if ya go too allstyles i reckon we could try it as jetted for a 20/17 an put in a 102 ,as thats the jet on a px150 pre-mix should be pretty safe , so just get a 102 dellortto main jet an come sunday ok , got to cook for olds at 3 ,sunday roast its trad ,if ya get here early enuff could always swap ya tap out aswell . ok, Henri
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Post by stevievespa on Jul 16, 2014 9:20:28 GMT
Cool henri cheers I can b at yours for 11ish that too early?
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Post by rab on Jul 16, 2014 12:12:52 GMT
sunday dinner at 3 steve,,,i would be turning up about 2 so henri has an hour to do his magic then dinners in the bag!!!! He has a very good point hehehe |
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